, 1887-12-29

Denver clulul, WHITE tut iOue WIZ
discovered, carrying good ore the
day before left the camp.
1t Is now demonstrated beyond
question that the lode extend
through the whole length OF the Ar.
lingtOu location and south across II
norton OF the Pomer0y claim (llG
feet) and into the Missing Link
ground, us above stated, II total
known distance south Of the Arling-
ton shaft Of about 700 feet,
Going north the lode has not been
found In place anywhere north OF II
small tavine that crosses the north
end Of the Arlington claim, but find.
ing the float boulders Of ore in the
Missing Link ground, as above
stated, is nm assurance that the lode
does extend north Of the Arlington
claim.
From the facts above stated, and
from the physical character of the
nssure, andithe banded structure OF
the lode itself, there can be no doubt
OF the permanent character and con-
tinuity of the Arlington lode to great
depths. No man can tell with any
thing like certainty what the width
OF the lode may be, or how rich In
silver ii may be, below the actual ex-
plorations.
The lode Is composed of true quartz
gangue carrying the silver ore In
disseminated grains Of black sui ulpher.
cts OF silver with some cOpper-silver
glance and brittle sulpharet resem.
bling tenahtite, giving a dark red
powdery streak with tho point OF
knife, closely approaching the char
acteristics OF dark antimOnial ruby
silver. In addition TO this Is found
galena and some crystals of zinc.
blnde. These minerals are well dis
seminated through the quartz
gangue, only a small portion of the
quartz being absolutely barren.
made as careful samples as posi-.
BILE of the first and secOnd-class ore
as 1t occurs in quantity, assays Of
which. made by WIN. II. Fuller of
Spokane Falls, gave for the first t.class
ole $1S6. 40 silver and $3.50 in gold
ton, making total value Of Sl0l.00
per ton Of tirst-class ore.
The sample OF second class ore
gave by assay S34. .l6 per ton count
ing silver ut 81 per ounce with only
trace Of gold--45 cents.
These samples were taken care
fully from the entire lot taken from
the shaft (amounting at least to 100
tons) with the intention OF getting a
safe, conservative estimate OF the
average value ore In bulk.
The proportion OF first and second
class ore In the whole lot Is of course
u matter OF personal judgment. !
think II Is safe to say that ne-third
OF the whCle Is tirst.class ore. Estl-
mating the proportions as above, 1t
gives an average value by assay of
SS8 "a per ton for the whole lot, say
100 tons on the dump. This Is con-
sidered a high average for large
strong vein In any mining district.
1t shows also that too much OF the
low grade ore has been thrown over
the dump as waste stuff In my
opinion the ore should be assorted so
as to bring the average down to about
$50 per ton. and everything that VIII
carry S15 per ton should he saved to
be sent to the mills at some future
time. 1t must be remembered that
the mining costs of this low grade
ore will be paid out OF the proceeds
of the richer ores. The transpOrta-
tion and reduction charges are all
that will stand against the low-grade
ore.
In making an estimate of available
ore within the limits OF approximate
certainty, / shall contine the esti.
mate to Il block of ground now par
tally explored by the shaft and sur
face cross cuts 800 feet long by GO
feet deep and an average width OF o
feet, making 10000 cubic feet OF
quartz as IL stands in the lode. This
WIN give about 5000 gross tons.
Assuming that one half Of this
amount 5000 tons) will give an aver
age assay value of $50 per ton, we
have gross value OF S24O.0 900.
Deduct from this 10 per cent loss
In milling ($24.0O0 and $50 per ton
for the cost OF mining, transporta-
.ion and milling (s6O.OOW there re-
mains $l5O.OO0 net from the small
block of ground estimated.
/ believe this to be Il very safe and
conservative estimate OF present
values and fully warranted by the
facts as shown by the partial explo-
rations made up to date.
Estimates OF the values OF unex-
DlOred mines must be more or less
prospective and matter OF personal
Judgment, based on the structure.
size and general aspect of the facts
presented at the surface. From
careful study OF all the facts OF this
case arrive at the conclusion that
the Arlington claim is on true fis-
sure lode OF great strength and per-
mamence, with tenure In silver
much above the average of worka-
BILE silver mines; that 1t will carry
good ore to great depth below the
surface, probably as deep as modern
appliances will enable you to work
IT, and that Its present and prospec-
tive value fully warrants It's thor
ough development and equipment